A user pointed out today that when you add the results of a search to a review you get diffs when most of the time you want full source. They wanted to add a whole tag to a review, when they search for a tag and add the results they get a bunch of empty diffs.

The default, for the search tab at least (and probably the file tab as well), should be to add the revision without a diff. An option to add a guessed (or specific) diff would be good too.